NIIGATA SEIKI CO., LTDBluetoothBOXDTW-DG02■MOUNTING
1.Install a standard USB Bluetooth adapter by plugging it into the USB-A connector of theInstruction Manualadapter.

Thank you for purchasing BluetoothBOX, DTW-DG01.
Please read this document thoroughly for proper operation and in order to get the greatest benefit from the product.

■OVERVIEW

2.Remove the Caliper screw shown in the photo. Keep screw from being lost for future use.
3. Prepare a vernier caliper mounting plate and mounting screws. If the vernier caliper is thick(see left image), prepare a washer.If the thickness of the vernier caliper is thin (see image),

Wireless adapter for GD series Calipers.
Bluetooth communication using an external USB Bluetooth adapter (Bluetooth 4.0 or higher) with support for USBHID class.

no washer is required.

※ This adapter requires a standard USB Bluetooth Adapter (Bluetooth 4.0 or higher,) purchased separately.

①※ When connecting multiple devices, use Bluetooth adapters with different device addresses. Only one TP-Link
Bluetooth adapter can be connected.

■FEATURESCaliper● Can communicate with wide range of Bluetooth capable devices.
● Accepts a standard USB Bluetooth adapter, available worldwide.

①Washer● Measurement data can be transferred to software such as Excel, etc.

②Mounting Bracket■ART IDENTIFICATION③Caliper Mounting Screw②③

Attach to the Caliper as shown and secure using a Phillips screwdriver.

① Power ON/OFF Button
・ Short press of button will turn device ON (Status LED = Red).

①Power ON/OFF Button

・ When ON, a short press will turn the device OFF

4.Mount the Adapter to the Bracket and secure with the Plate Screw.
※ A standard screwdriver can be used to tighten the Plate Screw.
5.Connect the Adapter to the Calipers using the Mini-USB to Mico-USB connection cable.

(Status LED = off).

※When connecting with a caliper with a USB cable, the caliper setting value is initialized.After connecting the・Hold down the Send Button and press the Power Button at samecable, please set the calipers.
■Connection method

time to enter pairing (discovery) mode
(Status LED = Blinking Green).

・Turn on the power of devices such as PCs and tablets to enable Bluetooth.

②USB-A Connector②USB-A Connector

Customer supplied USB Bluetooth adapter plugs in here.

* Only for Windows 10. Do not perform pairing operation on the Windows PC side. You can connect only with SK-LOG.
-Start SK-LOG and select "GDC caliper (BluetoothBOX) for Win10".

Do not use to connect other USB devices.
③ Send Button③Send Button
・ When device is communicating (Status LED = Blue), pressing-Select the relevant measuring instrument on the SK-LOG measuring instrument setting screen and select "BLE search" tostart the search.

④Micro-USB Connector-Select the displayed device address and set it on the measuring instrument setting screen, and you are ready to go.

this button will transmit the measurement to the PC.

-When you press the connect button on SK-LOG and the LED of this unit lights up in blue, the connection is complete.

・Hold down the Send Button and press the Power Button at same

* It may take up to 10 seconds from pressing the connection button to completing the connection.

time to enter pairing (discovery) mode

■Data transmission method (real-time mode)(Status LED = Blinking Green).

-This unit operates in real-time mode when the power is turned on with only the power ON / OFF button at startup.

⑥ Status LED④Micro-USB Connector⑤ Charging LED・ Connects to the Caliper using the included Communication

In real-time mode, the measured value is always sent to the PC, so if you want to record it, you need to specify the recording
timing with software.

Cable (Micro-USB to Mini-USB) to send the measurement data to the wireless adapter.
・ Connect to the included AC-USB charger and Charging Cable, or connect to PC to charge the device.

If you want to send / record data on the measuring instrument side, please use the sleep mode described later.

※ Do not use to connect other USB devices.

When the connection with SK-LOG is completed and the numbers of this unit and the measuring instrument are displayed and⑦ Mounting Bracket⑤Charging LED

connected with a communication cable, the status LED turns green. When it turns green, the communication data of themeasuring instrument is being analyzed. When the LED green goes out, the analysis is completed and the data is sent.If

LED on when charging; goes off when complete.

you move the caliper slider or disconnect the communication cable while the status LED is green, the LED may remain⑥Status LED⑧ Caliper Mounting Screw

Power ON:LED=RedCommunicating:LED=Blue

Pairing:LED=Green

Transmitting data

:LED=Blinking GreenSLEEP:LED=Purple

Voltage low:LED=Blinking Redgreen. Even in this state, if the analysis is completed again, the communication will be completed without any problem, sostabilize the caliper and review the communication cable connection.

■Sleep mode
⑨ Plate Screw

This unit operates in sleep mode when the power is turned on while pressing the send button at startup.
Real Thai when the power is turned on with only the power ON / OFF button Operates as a mode.
-Real-time mode: Measured values are always sent. It cannot be recorded with the submit button.

⑦-⑩-Sleep mode: The measured value is sent only when the send button is pressed. The unit then goes into sleep mode.

⑩ WasherIf you want to record with the send button, or if you want to save battery, use sleep mode. * Disconnection from the software

Metal clamp for mounting adapter on to Calipers.

does not work during sleep mode. If you disconnect with software Use the power ON / OFF button on the unit to turn thepower off and then on again, and then use the software to connect.

■ AUTO OFF
If inactive for 20 minutes, the power will turn OFF. Please press the Power Button to turn back ON. If battery voltage drops
below a certain level, the Status LED will blink Red. As voltage continues to drop the adapter will automatically turn OFF.
Communication Cable

Charging Cable

SK-LOG software CD■LOW BATTERY LEVEL
If battery voltage drops below a certain level, the Status LED will blink Red. As
voltage continues to drop the adapter will turn OFF automatically in order to protect
the Lithium Polymer Battery.
※ Since the adapter enters SLEEP mode when not active, to determine if Battery islow, turn the adapter back ON and check the Status LED. If the LED blinks when
the Send Button has not been pressed, the power level is low.
Some PC Bluetooth interfaces will display battery status for connected devices. The
adapter transmits the status when connection is completed, and does not updated
afterward. Please use this value as an indication of battery level.

■CHARGING
・Disconnect the Communication Cable from the adapter's Micro-USB Connector, and connect the Charging Cable.
・Connect the USB-A end of the cable to the AC-USB Charger, or to a PC Port for charging■SPECIFICATION
Model: DTW-DG02
Wireless Protocol : Bluetooth LE (GATT profile compatible)
Input: Caliper proprietary signal
Output: USBHID class compliant
Power: Lithium Polymer Battery (350mAh)
Continuous on time: 17 hours (for send rate of 250 sends/hr)
charge time: 100 minutes
Dimensions: 35(L)×57(W)×17.5(H)mm
Weight: 45g (Including battery)
Package contents : Main unit (×1), SK-LOG software (×1), Charging Cable(1m) (×1),
Communication Cable (20cm, ×1), Mounting Bracket (×1),
Plate Screw (M3, ×1), Caliper Mounting Screw (M2, ×1),
Washer (×1), Instruction Manual
Compatible OS: Windows10,11※ The charging LED will light when charging is started. The LED will go out when complete.

■AFTER USE CARE ・ STORAGEStorage

When not in use, store away from direct sunlight in moderate temperatures (0°C~40°C).
Store with the power OFF. If not used for a long period, please maintain the battery by charging to■NOTESFor best performance, and in order to keep the adapter in good condition for long service, please read and follow
these instructions.

50% capacity every three months.

■TROUBLESHOOTING
Problem

Cause

Solution① A USB Bluetooth adapter is not ①
plugged in.

Please install a USB Bluetooth adapter compatible
with BluetoothLE (GATT profile) into the Wireless Adapter.

Will not Pair
② The settings on the PC and the ②

After restarting your computer, search for the device again.

Wireless adapter may not match.
①

Pairing Mode did complete.

①

Make sure a USB Bluetooth adapter is plugged in.
Hold down the Send Button and press the Power Button

Devicenot found● Avoid using where the device will be subject to the following conditions:・ Dirty or dusty locations
・ Exposed to direct sunlight・ Exposed to acids, alkali solutions, or organic solvents.
・ Exposed to oils or water.
・ Equipment which creates sparks or electric discharge, or other locations which require high electric shielding.
・ Near equipment which produces strong electromagnetic fields, such as high voltage cables, or broadcasting
facilities.
● Clean only with dry cloth slightly moistened with a mild detergent or alcohol. Do not use any organic solvents.
● Do not disassemble or modify.

at same time to enter pairing mode.
②The settings on the PC and② Please try the following.

the Wireless adapter may

・ Turn off / on the power of this machine.

not match.

・ Remove and replace the PC Bluetooth adapter.
・ Reboot the PC①

Measuring instrument data①

does not display.
②

Bluetooth connection error.

Check the measuring instrument and cable, and makesure the instrument is in a measuring mode.

②

NIIGATA SEIKI CO., LTD
5-3-14, Tsukanome, Sanjo-city, Niigata Pref. 955-0055 JAPANTEL: 0256-33-5502 FAX: 0256-33-5528
URL https://www.niigataseiki.co.jp

Make sure the device is within Bluetooth range, and redo
the pairing if necessary.

③

Software communication③Close, and then restart the communication software.

④

Cancel the pairing, remove and reinsert the PC Bluetootherror.
Data does
not transmit④

Bluetooth status error.

adapter, and pair again.
⑤

Display reads "ERR1"⑤

No data is received by adapter, so there is a problem withthe measuring instrument or communication cable, please⑥check..

Once power is turned OFF,does not reconnect whenpower is turned back ON.

⑥

If you turn OFF power, and turn ON again before
the PC disconnects, the PC will not connect tothe device. Please remove and reinsert the PC
Bluetooth adapter, reboot, and pair again.

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